/* WhatsApp Status Generator - Mobile-first styles */

:root {
    /* WhatsApp-inspired colors */
    --color-primary: #25D366;
    --color-primary-dark: #128C7E;
    --color-secondary: #075E54;
    --color-bg: #ECE5DD;
    --color-bg-pattern: #D4CFC9;
    --color-card: #FFFFFF;
    --color-text: #303030;
    --color-text-light: #667781;
    --color-accent: #34B7F1;
    --color-heart: #E74C3C;
    --color-heart-empty: #BDC3C7;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50%;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Base */
html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--color-bg);
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5c-1.5 0-3 .5-4 1.5-2 2-2 5 0 7l4 4 4-4c2-2 2-5 0-7-1-1-2.5-1.5-4-1.5zm0 20c-1.5 0-3 .5-4 1.5-2 2-2 5 0 7l4 4 4-4c2-2 2-5 0-7-1-1-2.5-1.5-4-1.5zm0 20c-1.5 0-3 .5-4 1.5-2 2-2 5 0 7l4 4 4-4c2-2 2-5 0-7-1-1-2.5-1.5-4-1.5z' fill='%23D4CFC9' fill-opacity='0.3'/%3E%3C/svg%3E");
    color: var(--color-text);
    min-height: 100vh;
    min-height: 100dvh;
    line-height: 1.5;
}

/* Container */
.container {
    max-width: 480px;
    margin: 0 auto;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh;
}

/* Header */
.header {
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.subtitle {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* Category Tabs */
.tabs {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--color-card);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-md);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
    display: none;
}

.tab {
    flex: 1;
    min-width: 70px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-xs);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.tab:hover {
    background: rgba(37, 211, 102, 0.1);
}

.tab.active {
    background: var(--color-primary);
    color: white;
}

.tab-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.tab-label {
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

/* Phrase Container */
.phrase-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) 0;
}

.phrase-card {
    position: relative;
    width: 100%;
    background: var(--color-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.phrase {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--color-text);
    word-wrap: break-word;
    hyphens: auto;
}

.phrase.generated {
    animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Favorite Button */
.favorite-btn {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: transform var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.favorite-btn:hover {
    transform: scale(1.1);
}

.favorite-btn:active {
    transform: scale(0.95);
}

.heart {
    font-size: 1.5rem;
    transition: transform var(--transition-fast);
}

.favorite-btn.active .heart {
    animation: heartBeat 0.4s ease;
}

@keyframes heartBeat {
    0%, 100% { transform: scale(1); }
    25% { transform: scale(1.3); }
    50% { transform: scale(1); }
    75% { transform: scale(1.2); }
}

/* Action Buttons */
.actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    min-height: 52px;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn:active {
    transform: scale(0.98);
}

.btn-icon {
    font-size: 1.25rem;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
}

.btn-secondary {
    background: var(--color-card);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: #F5F5F5;
}

.btn-tertiary {
    background: transparent;
    color: var(--color-primary-dark);
    border: 2px solid var(--color-primary-dark);
}

.btn-tertiary:hover {
    background: rgba(7, 94, 84, 0.1);
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-secondary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 1000;
    white-space: nowrap;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Favorites Section */
.favorites-section {
    margin-bottom: var(--spacing-md);
}

.favorites-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--color-card);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.fav-count {
    background: var(--color-heart);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    min-width: 24px;
    text-align: center;
}

.fav-count.empty {
    background: var(--color-text-light);
}

.favorites-panel {
    background: var(--color-card);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    margin-top: -8px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    max-height: 300px;
    overflow-y: auto;
}

.favorites-panel.hidden {
    display: none;
}

.favorites-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.empty-favorites {
    text-align: center;
    color: var(--color-text-light);
    font-style: italic;
    padding: var(--spacing-md);
}

.favorite-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(37, 211, 102, 0.05);
    border-radius: var(--radius-sm);
}

.favorite-item-text {
    flex: 1;
    font-size: 0.9rem;
    line-height: 1.4;
    cursor: pointer;
}

.favorite-item-remove {
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.favorite-item-remove:hover {
    opacity: 1;
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-md) 0;
    color: var(--color-text-light);
    font-size: 0.85rem;
}

/* Responsive adjustments */
@media (min-width: 375px) {
    .tab-label {
        font-size: 0.75rem;
    }

    .phrase {
        font-size: 1.35rem;
    }
}

@media (min-width: 480px) {
    .actions {
        flex-direction: row;
    }

    .btn {
        flex: 1;
    }

    .phrase {
        font-size: 1.5rem;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #121212;
        --color-bg-pattern: #1E1E1E;
        --color-card: #1E1E1E;
        --color-text: #FFFFFF;
        --color-text-light: #AAAAAA;
    }

    body {
        background-image: none;
        background-color: var(--color-bg);
    }

    .btn-secondary {
        background: #2A2A2A;
        color: white;
    }

    .btn-secondary:hover {
        background: #333333;
    }

    .favorite-item {
        background: rgba(37, 211, 102, 0.1);
    }
}